Clipper.



Patantd Out. I, 190i. H. L. HILLS.

6 L l P? E R.

(Application filed Aug. 6, 1900.)

(No Model.)

Ej f INVENTOR.

@ Mam,

WITNESSES.

12m 450, numuunm, wnsumaro UNTTED STATES PATENT OFFICE.

HOWARD L. HILLS, OF BATH, MICHIGAN, ASSIGNOR OF TWO-THIRDS TO LESTER S. HUDSON AND A. FREDERICK MOLITOR, OF LANSING,

MICHIGAN.

CLIPPER.

SPECIFICATION formingpart of Letters lPatent No. 683,466, dated October 1, 1901. Application filed August 6, 1900. Serial No. 26,037. (No model.)

To aZZ whom, it may concern..-

Be it known that I, HowAR'n L. HILLS, a

citizen of the United States, residing at Bath,

in the county of Clinton, State of Michigan, have invented certain new and useful Improvements in Clippers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to means for imparting a double reciprocation to a cutter-bar and is illustrated in connection with a pair of hand-operated clippers.

The invention consists in the construction and arrangement of parts hereinafter fully set forth, and pointed out particularly in the claims.

The object of the invention is to impart to a cutter-bar or similar movable part a double reciprocation by a single movement of the pivoted handle or member of the device, the invention being applicable to any mechanical combination where a rapid vibratory movement is required, the arrangement being such as to produce a double stroke of the cutter-bar for each movement of the operating-handle.

The above object is attained by the mechanism illustrated in the accompanying drawings, in which r Figure 1 is a plan view of a pair of clippers embodying my invention. Fig. 2 is a longitudinal section on line 2 2 of Fig. 1. Fig. 3 is a transverse section as on line 3 3 of Fig. 1, showing by dotted lines the movement of the parts. Fig. 4 is a section on line 3 3 of Fig. 1, showing the intermediate position of the parts between the two extremes of their movement. Fig. 5 is a transverse section on line 5 5 of Fig. 1.

Referring to the characters of reference, 1 designates a bed-plate upon which is mounted to reciprocate laterally the cutter-plate 2, secured in place by bolts 3, passing through slots in said plate and through the bracket at, mounted thereon, whereby the cutter-plate is confined and directed in its movement. The

outer edge of the cutter-plate is provided with shear-teeth 5, which extend onto the teeth 6 of like formation in the outer edge of the bedplate 1. The edges of said teeth are sharpened, and a lateral movement of the cutterplate causes said teeth to shear by one another, and thereby sever anything between them, as will be well understood in the art.

The handles 7 and 8 respectively serve as the means for operating the device. The handle 7 is rigidly secured to the bed-plate 1, while the handle Sis pivoted thereto, as at 9. Mounted upon the inner face of the handle 7 is a bracket 10, having a finger 11 projecting from its lower side and a recess 12 above said finger. The rear end of the rock-shaft 13 is journaled in a bearing 14:, mounted upon the bracket 10, while the forward end of the shaft extends downwardly and is journaled in the bracket 4:, the extreme forward portion 15 of said shaft being bent downwardly and engaging in an aperture 16, formed in the cutterplate 2. Attached to the upper end of the shaft 13 is a crank 17. The crank 17 is connected by a toggle-lever 18 with the finger 11 of the bracket 10, and the jointed members of said lever are pivoted at 19 to the link 20, which is in turn pivoted at 21 to the bracket 22, mounted on the movable handle 8. It will now be understood that in the operation of the device asthe handle 8 is moved toward the handle 7 the toggle-lever is straightened, as shown in Fig. 4., and the free end of the crank 17 raised. A further movement of the handle 8 toward the handle 7 carries the joint in the toggle-lever past the vertical center of said lever and into the recess of the bracket 10, as shown by dotted lines in Fig. 3, thereby depressing the crank 17. In the movement of the handle 8 from the handle 7 the toggle-lever is again straightened and the crank 17 again raised, and as the joint in said lever passes the center the crank is again depressed as the parts attain their normal position, so that by a single movement of closing and opening the handles of the clipper the crank 17 is twice raised and lowered. This rocking of the shaft 13 through the movement of said crank imparts a double reciprocation to the cutter-p1ate 2 through the medium of the bent end portion 15 of said shaft which engages said plate. The bent portion 15 of the shaft stands slightly out of aXiliar alinement therewith, so that when the handle 8 is carried toward the handle 7 and the first position of the crank 17 is attained, as shown in Fig. 4, the movement imparted to the shaft through said crank will move the cutter-plate, so as to carry its teeth across the opening between the teeth of the plate 1. Then as a further movement of the handle 8 toward the'handle 7 carries the joint of the toggle 11 past the center and into the recess 12 of the bracket 10 the crank 17 is drawn downward, thereby rotating the shaft 13 to move the cutter-plate back to its former position and effecting a second out between its teeth and the teeth of the plate 1. As the handle 8 moves away from the handle 7 the above operation is repeated, whereby instead of getting a single out between the shearplates as the handles are closed and opened a double cut is produced by the movement of the handles in both directions.

In the operation of the device shown the handles are grasped by the hand of the operator and brought together by a closing of the hand. To provide for separating the handles after being closed, the bow-springs 23 are employed, whose outer ends are secured to the ends of the handles and the inner ends of which extend forward through the brackets 10 and 22 and meet in the center between said handles. The tension of said springs is suflicient to throw the handles apart when the grip of the operator is released, so that by simply closing and opening the hand a double reciprocation is imparted to the cutter-plate.

While I have illustrated this invention as applied to hand-clippers, Ido not wish to limit myself to the particular combination of elements shown, as the invention may be employed for imparting a reciprocatory movement to other operative parts without departing from the spirit of my invention.

Having thus fully set forth my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a device for the purpose set forth, the combination of a fixed and a movable cutter, a rock-shaft connected directly to the movable cutter, a movable handle, means connecting said handle with said rock-shaft to impart a reverse rotation to said shaft in reciprocal succession by a single movement of said handle in either direction.

2. In a device for the purpose set forth, the combination of the cutter-plates, one of which is movable, a rock-shaft connected to the movable plate, a movable handle, a togglelever connecting said handle with said shaft and adapted to impart to the shaft a rotary reciprocation, and a spring for retracting said handle when depressed.

3. In a device for the purpose set forth, the combination of the cutter-plates, one of which is movable, a rock-shaft having a bent end portion engaging the movable plate, a crank on said rock-shaft, afixed handle having a projecting bracket, a toggle-lever connecting said bracket with said crank, a movable handle and a link connecting said movable handle with said toggle-lever.

4c. In a device for the purpose set forth, the combination of the rock-shaft, a cutter-plate to which the end of said shaft is directly connected, a crank on said shaft, a lever pivoted to said crank, a movable handle and a link pivoted to said handle'and to said lever.

5. In a device for the purpose set forth, the combination of the rock-shaft, a cutter-plate to which the end of said shaft is attached, the crank on said shaft, a lever pivoted to said crank, a movable handle, a link pivoted to said handle and to said lever and a spring for returning said handle.

6. In a device for the purpose set forth, the combination of a rock-shaft, adapted to have a rotary reciprocation, a crank on said shaft, a toggle-lever pivoted at one end to said crank the jointed portion of said lever being adapted to swing by its point of pivot to said crank in both directions to impart a reciprocatory movement to said crank, a movable actuatinghandle and a link connecting said handle with said lever.

In testimony whereof I sign this specification in the presence of two witnesses.

HOWARD L. HILLS.

Witnesses:

CHAS. VAN SCOY, JAMES SWEENEY. 

